f73fccc50cda7bc1f80239ec7c5bfaffdca7b62db4623c65944db32c938eefa9

Analysis

max time kernel
108s
max time network
46s
platform
windows7_x64
resource
win7-20220812-en
resource tags

arch:x64arch:x86image:win7-20220812-enlocale:en-usos:windows7-x64system
submitted
27-11-2022 02:55

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General

Target

ͬļ--豸/1.¼1 ŵ1_ͬ¼.xls
Size

85KB
MD5

1b312b1526b03f5e4a56672f4978fcfd
SHA1

37f82d04b2d0c432c95bd765d0b9ef5380afc7e4
SHA256

930233d6a045cd9d4b8a2971d1a176aedfb58a25f04fc20ca3b0ebe629471973
SHA512

64677cfaee666d80c4937b553a44034b84505caa14da4f03d22e3491b8447a18f97cb696590ff03e90d3a0b1619bb592ea44f5932c1e97ecc7b4238d3153b957
SSDEEP

1536:HOOOO67DSy1NO2lXbjSytC2BhYS6Drm1gxv7yZmspH7+cclKiEZClsPI4ukoRWGx:Rm1gxv7yZmspH7+cclKisPI4ukoRWGNf

Score

10^/10

Malware Config

Signatures

Process spawned unexpected child process 3 IoCs

This typically indicates the parent process was compromised via an exploit or macro.

Processes:

cmd.execmd.execmd.exe

description	pid	pid_target	process	target process
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1832	1980	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	1596	1980	cmd.exe	EXCEL.EXE
Parent C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE is not expected to spawn this process	824	1980	cmd.exe	EXCEL.EXE

Deletes itself 1 IoCs

Processes:

EXCEL.EXE

pid process

1980 EXCEL.EXE
Office loads VBA resources, possible macro or embedded object present
Enumerates system info in registry 2 TTPs 1 IoCs

Query Registry
T1012

System Information Discovery
T1082

Processes:

EXCEL.EXE

description ioc process

Key opened \REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor EXCEL.EXE

pid	process
1980	EXCEL.EXE

description	ioc	process
Key opened	\REGISTRY\MACHINE\Hardware\Description\System\FloatingPointProcessor	EXCEL.EXE

Modifies Internet Explorer settings 1 TTPs 9 IoCs

adware spyware

Modify Registry

T1112

Processes:

EXCEL.EXE

description	ioc	process
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar\ShowDiscussionButton = "Yes"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\Contexts = "1"	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\Toolbar	EXCEL.EXE
Key created	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\ONBttnIE.dll/105"	EXCEL.EXE
Set value (int)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\Se&nd to OneNote\Contexts = "55"	EXCEL.EXE
Set value (str)	\REGISTRY\USER\S-1-5-21-3845472200-3839195424-595303356-1000\Software\Microsoft\Internet Explorer\MenuExt\E&xport to Microsoft Excel\ = "res://C:\\PROGRA~2\\MICROS~1\\Office14\\EXCEL.EXE/3000"	EXCEL.EXE

NTFS ADS 1 IoCs

Processes:

EXCEL.EXE

description ioc process

File created C:\Users\Admin\AppData\Local\Temp\ͬļ--豸\87CC6000\:Zone.Identifier:$DATA EXCEL.EXE
Suspicious behavior: AddClipboardFormatListener 1 IoCs

Processes:

EXCEL.EXE

pid process

1980 EXCEL.EXE
Suspicious behavior: RenamesItself 1 IoCs

Processes:

EXCEL.EXE

pid process

1980 EXCEL.EXE
Suspicious use of SetWindowsHookEx 7 IoCs

Processes:

EXCEL.EXE

pid process

1980 EXCEL.EXE
1980 EXCEL.EXE
1980 EXCEL.EXE
1980 EXCEL.EXE
1980 EXCEL.EXE
1980 EXCEL.EXE
1980 EXCEL.EXE

description	ioc	process
File created	C:\Users\Admin\AppData\Local\Temp\ͬļ--豸\87CC6000\:Zone.Identifier:$DATA	EXCEL.EXE

pid	process
1980	EXCEL.EXE

pid	process
1980	EXCEL.EXE

pid	process
1980	EXCEL.EXE
1980	EXCEL.EXE
1980	EXCEL.EXE
1980	EXCEL.EXE
1980	EXCEL.EXE
1980	EXCEL.EXE
1980	EXCEL.EXE

Suspicious use of WriteProcessMemory 20 IoCs

Processes:

EXCEL.EXEcmd.exe

description	pid	process	target process
PID 1980 wrote to memory of 1892	1980	EXCEL.EXE	splwow64.exe
PID 1980 wrote to memory of 1892	1980	EXCEL.EXE	splwow64.exe
PID 1980 wrote to memory of 1892	1980	EXCEL.EXE	splwow64.exe
PID 1980 wrote to memory of 1892	1980	EXCEL.EXE	splwow64.exe
PID 1980 wrote to memory of 1832	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1832	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1832	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1832	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1596	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1596	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1596	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 1596	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 824	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 824	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 824	1980	EXCEL.EXE	cmd.exe
PID 1980 wrote to memory of 824	1980	EXCEL.EXE	cmd.exe
PID 1832 wrote to memory of 1696	1832	cmd.exe	attrib.exe
PID 1832 wrote to memory of 1696	1832	cmd.exe	attrib.exe
PID 1832 wrote to memory of 1696	1832	cmd.exe	attrib.exe
PID 1832 wrote to memory of 1696	1832	cmd.exe	attrib.exe

Views/modifies file attributes 1 TTPs 1 IoCs
evasion

Hidden Files and Directories
T1158

Processes:

attrib.exe

pid process

1696 attrib.exe

pid	process
1696	attrib.exe

C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE
"C:\Program Files (x86)\Microsoft Office\Office14\EXCEL.EXE" /dde "C:\Users\Admin\AppData\Local\Temp\ͬļ--豸\1.¼1 ŵ1_ͬ¼.xls"
1⤵
- Deletes itself
- Enumerates system info in registry
- Modifies Internet Explorer settings
- NTFS ADS
- Suspicious behavior: AddClipboardFormatListener
- Suspicious behavior: RenamesItself
- Suspicious use of SetWindowsHookEx
- Suspicious use of WriteProcessMemory
PID:1980

C:\Windows\splwow64.exe
C:\Windows\splwow64.exe 12288
2⤵
PID:1892

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
- Suspicious use of WriteProcessMemory
PID:1832

C:\Windows\SysWOW64\attrib.exe
attrib -S -h "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
3⤵
- Views/modifies file attributes
PID:1696

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c Del /F /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:1596

C:\Windows\SysWOW64\cmd.exe
C:\Windows\system32\cmd.exe /c RD /S /Q "C:\Users\Admin\AppData\Roaming\Microsoft\Excel\XLSTART\K4.XLS"
2⤵
- Process spawned unexpected child process
PID:824

MITRE ATT&CK Matrix ATT&CK v6

Initial Access

Execution

Persistence

Hidden Files and Directories

T1158

Privilege Escalation

Defense Evasion

Modify Registry

T1112

Hidden Files and Directories

T1158

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Exfiltration

Command and Control

Impact

Replay Monitor

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Downloads

memory/824-91-0x0000000000000000-mapping.dmp

Download
memory/1596-90-0x0000000000000000-mapping.dmp

Download
memory/1696-94-0x0000000000000000-mapping.dmp

Download
memory/1832-89-0x0000000000000000-mapping.dmp

Download
memory/1892-60-0x000007FEFB7B1000-0x000007FEFB7B3000-memory.dmp

Filesize
8KB

Download
memory/1892-59-0x0000000000000000-mapping.dmp

Download
memory/1980-96-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-99-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-62-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-63-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-65-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-66-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-64-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-58-0x0000000075981000-0x0000000075983000-memory.dmp

Filesize
8KB

Download
memory/1980-57-0x0000000071FED000-0x0000000071FF8000-memory.dmp

Filesize
44KB

Download
memory/1980-56-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1980-92-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-93-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-95-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-55-0x0000000071001000-0x0000000071003000-memory.dmp

Filesize
8KB

Download
memory/1980-54-0x000000002F451000-0x000000002F454000-memory.dmp

Filesize
12KB

Download
memory/1980-97-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-98-0x0000000071FED000-0x0000000071FF8000-memory.dmp

Filesize
44KB

Download
memory/1980-61-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-100-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-101-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-102-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-103-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-104-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-106-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-107-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-105-0x000000000070E000-0x0000000000718000-memory.dmp

Filesize
40KB

Download
memory/1980-108-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-109-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-110-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-111-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-112-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-113-0x0000000003050000-0x0000000003150000-memory.dmp

Filesize
1024KB

Download
memory/1980-114-0x000000005FFF0000-0x0000000060000000-memory.dmp

Filesize
64KB

Download
memory/1980-115-0x0000000071FED000-0x0000000071FF8000-memory.dmp

Filesize
44KB

Download

Analysis

Sharing

General

Malware Config

Signatures

Processes

Network

MITRE ATT&CK Matrix ATT&CK v6

Replay Monitor

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Downloads